Ham and Cheese Quiche

Ingredients

• 1 10-inch uncooked pie crust
• 1/2 tablespoon salted butter
• 1/4 cup yellow onion, chopped
• 1/2 cup ham, cubed
• 2 tablespoons cooked bacon, chopped
• 3 large eggs
• 1/4 cup half-and-half or milk
• 1/2 cup shredded cheddar cheese
• 1/4 cup shredded mozzarella or parmesan cheese
• 1/8 teaspoon ground black pepper
• 1/4 teaspoon dried parsley flakes
• 1/4-1/2 cup spinach, chopped